December weather forecast
Matawan, NJ

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Weather in December

The first month of the winter, December, is still a chilly month in Matawan, New Jersey, with an average temperature fluctuating between 34.2°F (1.2°C) and 43.5°F (6.4°C).

Temperature

December signifies a gentle decline in Matawan's average high-temperature, easing from a fresh 52.3°F (11.3°C) in November to a chilly 43.5°F (6.4°C). Throughout December, Matawan experiences a low-temperature average of 34.2°F (1.2°C).

Humidity

In Matawan, the average relative humidity in December is 76%.

Rainfall

In December, the rain falls for 10.7 days. Throughout December, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 153 rainfall days, and 28.7" (729mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Matawan, New Jersey, during December, snow falls for 3.1 days and regularly aggregates up to 0.83" (21mm) of snow. In Matawan, during the entire year, snow falls for 16.9 days and aggregates up to 6.34" (161mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Matawan.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:40 pm EST.

Sunshine

The average sunshine in December in Matawan is 5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Matawan. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

How cold is it in Matawan in December?

During December, Matawan experiences an average high-temperature of 43.5°F (6.4°C) and a low-temperature of 34.2°F (1.2°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 86°F (30°C).

What is the average humidity in December in Matawan?

In Matawan, New Jersey, the average relative humidity in December is 76%.

How much does it rain in Matawan in December?

In Matawan, during December, the rain falls for 10.7 days and regularly aggregates up to 2.8" (71mm) of precipitation.

How many days does it snow in December in Matawan?

In Matawan, during December, snow falls for 3.1 days and regularly aggregates up to 0.83" (21mm) of snow.

What is the month with the shortest days in Matawan?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Matawan?

In December, the average day length is 9h and 21min.

When is the sunrise / sunset in December in Matawan?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:31 pm. On the last day of the month, in Matawan, New Jersey, sunrise is at 7:19 am and sunset at 4:40 pm EST.

How many hours of sunshine does Matawan have in December?

The average sunshine duration in December in Matawan is 5h.

What is the month with the lowest UV index in Matawan?

The months with the lowest UV index in Matawan are January through March, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Matawan?

In Matawan, New Jersey, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Matawan, NJ

Average temperature in December - Matawan, NJ
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in December: 34.2°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in December
Matawan, NJ

Average pressure in December - Matawan, NJ
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Matawan, NJ

Average wind speed in December - Matawan, NJ
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in December
Matawan, NJ

Average humidity in December - Matawan, NJ
  • Average humidity in December: 76%

The months with the highest relative humidity are May and June (77%).
The months with the lowest relative humidity are March, April, August and November (73%).

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Average rainfall in December
Matawan, NJ

Average rainfall in December - Matawan, NJ
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in December
Matawan, NJ

Average rainfall days in December - Matawan, NJ
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (8.2 days).

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Average snowfall in December
Matawan, NJ

Average snowfall in December - Matawan, NJ
  • Average snowfall in December: 0.83"

The month with the highest snowfall is March (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Matawan, NJ

Average snowfall days in December - Matawan, NJ
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is January (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Matawan, NJ

Average daylight in December / Average sunshine in December - Matawan, NJ
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
Matawan, NJ

Average sunshine days in December - Matawan, NJ
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in December
Matawan, NJ

Average UV index in December - Matawan, NJ
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Matawan, NJ

Average cloud cover in December - Matawan, NJ
  • Average cloud cover in December: 47

The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 30).

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Average visibility in December
Matawan, NJ

Average visibility in December - Matawan, NJ
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Matawan, New Jersey, USA

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